Climate · 5 questions
Sustainability & Green Building
Passive design, ratings and material choices — how sustainability is actually delivered on a project.
For Owners, architects and consultants · Reviewed 2026-10-31
- 01
What is a green building?
A building designed, built and operated to reduce resource use and environmental impact while improving occupant comfort.
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What is passive design?
Using form, orientation, shading, insulation and ventilation to keep a building comfortable with minimal mechanical energy.
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Which green building certification should I use?
Local ratings such as IGBC or GRIHA in India, and international systems such as LEED or BREEAM, chosen by market expectation and cost.
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How do I choose sustainable building materials?
Judge durability, local availability, recycled content, embodied carbon, maintenance needs and end-of-life recovery.
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Should a project include rooftop solar?
Often yes — but reduce demand first, then size the system to the actual load profile and available roof area.
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